[Paraview] Overriding the maximal cylinder source resolution

[Tomislav Maric]

Hi Yoshimi,

Thanks for the info. I built my tests around the maximal available
resolution. I will check out the programmable source / filter / loop
subdivision if this turns out not to be sufficiently accurate.

Kind regards,
Tomislav

On 05/30/2017 05:27 AM, kenichiro yoshimi wrote:
> Hi Tomislav,
>
> I find restriction on the resolution number of a cyliner source in
> vtkCylinderSource.h, that is:
>   vtkSetClampMacro(Resolution,int,2,VTK_CELL_SIZE).
> This macro amounts to saying that the resolution is restricted to a
> range between 2 and VTK_CELL_SIZE(=512). Hence, I think it difficult
> to override.
>
> In order to increase the resolution of the cylinder, one thing you can
> try is to apply the loop subdivision filter after triangulating it.
>
> Thanks,
> yoshimi
>
> 2017-05-30 0:06 GMT+09:00 Tomislav Maric <tomislav.maric at gmx.com>:
>> Hello everyone,
>>
>> I have exported the paraview trace into the attached script that
>> generates a cylinder source without caps, triangulates and saves an STL
>> file.
>>
>> I have noticed that the cylinder resolution can be prescribed to any
>> number in the python script:
>>
>> ~~~
>>     # create a new 'Cylinder'
>>     cylinder1 = Cylinder()
>>
>>     # Properties modified on cylinder1
>>     cylinder1.Resolution = 100000
>> ~~~
>>
>> And this number is reported by the print command as well
>>
>> ~~~
>>     print(cylinder1.Resolution)
>> ~~~
>>
>> However, the actual resolution of the cylinder source never exceeds the
>> number 512. This I have figured out after manually inspecting the number
>> of triangles in the 'cylinder.stl' file generated by the attached script.
>>
>> I have browsed the VTK code as well, but I could not find the point
>> where the maximal cylinder source resolution is restricted to 512.
>>
>> My question is: can I somehow (in python, or in VTK) override the
>> resolution that is actually then applied to the cylinder? I am using
>> paraview version 4.4.0. Does it work in a newer paraview version?
>>
>> Kind Regards,
>>
>> Tomislav
>>
>>
>>
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